EP 0665451 B1 20000802 - Mode-field transforming optical waveguide and corresponding method of manufacture
Title (en)
Mode-field transforming optical waveguide and corresponding method of manufacture
Title (de)
Optischer Wellenleiter zur Umwandlung des Modenfeldes und Methode zu seiner Herstellung
Title (fr)
Guide d'ondes optique pour transformer le champ modal et son procédé de fabrication
Publication
Application
Priority
US 17636293 A 19931230
Abstract (en)
[origin: US5416863A] In accordance with the invention, a mode-field transforming waveguide region comprise an elongated glass core surrounded by glass cladding wherein the normalized index differential between the cladding and the core (termed DELTA ) varies along the length. Preferably the waveguide comprises an optical fiber having a hydrogen-loaded germanosilicate core. The variation of DELTA as a function of longitudinal distance can be effected by exposing the fiber to ultraviolet light and varying the dosage of exposure as a function of longitudinal distance.
IPC 1-7
IPC 8 full level
G02B 6/13 (2006.01); G02B 6/02 (2006.01); G02B 6/10 (2006.01); G02B 6/12 (2006.01); G02B 6/14 (2006.01); G02B 6/26 (2006.01)
CPC (source: EP US)
G02B 6/02052 (2013.01 - EP US); G02B 6/02114 (2013.01 - EP US); G02B 6/14 (2013.01 - EP US)
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
US 5416863 A 19950516; EP 0665451 A1 19950802; EP 0665451 B1 20000802; JP 3032130 B2 20000410; JP H07209538 A 19950811
DOCDB simple family (application)
US 17636293 A 19931230; EP 94309186 A 19941209; JP 33672594 A 19941226